1330831040 has 112 divisors (see below), whose sum is σ = 3951085824. Its totient is φ = 414796800.

The previous prime is 1330831027. The next prime is 1330831063. The reversal of 1330831040 is 401380331.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×1330831040² = 3542222514054963200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1330830997 and 1330831015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2366 + ... + 51645.

It is an arithmetic number, because the mean of its divisors is an integer number (35277552).

Almost surely, 2^1330831040 is an apocalyptic number.

1330831040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330831040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975542912).

1330831040 is an abundant number, since it is smaller than the sum of its proper divisors (2620254784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1330831040 is a wasteful number, since it uses less digits than its factorization.

1330831040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54046 (or 54036 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1330831040 is about 36480.5570132913. The cubic root of 1330831040 is about 1099.9534525758.

The spelling of 1330831040 in words is "one billion, three hundred thirty million, eight hundred thirty-one thousand, forty".